CN115079361B

CN115079361B - Butterfly-shaped leading-in optical cable with square cross section for pipeline

Info

Publication number: CN115079361B
Application number: CN202210865618.9A
Authority: CN
Inventors: 柯旋; 龙清钧; 刘勇; 朱玲
Original assignee: Telumin Technology Dongguan Co ltd; SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD; Shenzhen SDG Information Co Ltd
Current assignee: Telumin Technology Dongguan Co ltd; SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD; Shenzhen SDG Information Co Ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-11-04
Anticipated expiration: 2042-07-22
Also published as: CN115079361A

Abstract

The invention belongs to the technical field of communication optical cables, and discloses a butterfly-shaped lead-in optical cable with a square cross section for a pipeline, which is provided with a protective shell (1), a butterfly-shaped unit (2) and two reinforcing parts (3), and is characterized in that: the protective shell is square in cross section, the interior of the protective shell is provided with an accommodating cavity (10) and a pair of inner convex parts (123), and the reinforcing part (3) is positioned in the inner convex parts; the butterfly unit is composed of a butterfly sheath (21), two reinforcements (22) and an optical fiber (23); the butterfly unit is located the holding intracavity, and the plane at the axis place of two reinforcers (22) bisects the first symmetry plane of butterfly unit, and first symmetry plane passes through the crest line of another pair of apex angle in the inside of protection casing. The application has the following beneficial technical effects: the device can be placed in a square pipeline, the occupied space can be further reduced, the pipeline space can be more efficiently utilized, the structure is more compact, the material utilization rate is higher, and the cost is lower.

Description

Butterfly-shaped leading-in optical cable with square cross section for pipeline

Technical Field

The invention belongs to the technical field of communication optical cables, and discloses a butterfly-shaped leading-in optical cable with a square cross section for a pipeline.

Background

With the increasing demand of broadband access, the usage amount of the butterfly-shaped drop optical cable is increasing. The access of the optical cable is generally provided with a pipeline, an overhead cable and a buried cable, the overhead cable is extremely unattractive in laying, is easily interfered by the outside, is easily scraped and stolen, and the buried cable laying construction amount is large; the pipeline laying is more and more emphasized because general buildings have various pipelines connected with the outside, and people in the technical field make continuous research and development in order to make the volume of products smaller and the performance more excellent.

CN215181094U discloses a dual-core butterfly-shaped lead-in optical cable for a pipeline, which has two combined components, a butterfly-shaped unit, a protective layer and an outer sheath; it is characterized in that the combined component is in a special shape and structure; the two combined parts are oppositely arranged, the two butterfly unit accommodating cavities are spliced into a cuboid butterfly cavity, the first reinforcing part is positioned in the upper accommodating cavity of the first combined part, the first reinforcing part is positioned on the groove of the first combined part, the second reinforcing part is positioned in the upper accommodating cavity of the second combined part, the second reinforcing part is positioned on the groove of the second combined part, the butterfly units are positioned in the butterfly cavities, and the two combined parts form a cylindrical structure shape; the protective layer is positioned outside the two combined components, and the outer sheath is positioned outside the protective layer. The separation and combination are easy to realize through splicing, and the space utilization rate needs to be further improved.

CN214895944U discloses a light-weight pipeline drop optical cable, which relates to the technical field of optical cable manufacture, and the drop optical cable comprises a butterfly cable subunit, a reinforcement member and a water blocking layer, wherein the butterfly cable subunit comprises an optical fiber, a butterfly sheath wrapped around the optical fiber and a reinforcement member embedded in the butterfly sheath, and the butterfly cable subunit is provided with a reinforcement member between the notches of the butterfly wings at the two sides; the reinforcing parts are in a columnar structure, and each reinforcing part is tangent to the corresponding notch side walls on the two sides of the reinforcing part; the water blocking layer is tightly wrapped on the outer sides of the butterfly cable subunit and the reinforcing piece to form a cable core structure, the section of the cable core structure is circular, and the reinforcing piece and the inner side of the water blocking layer are arranged in a tangent mode; through implementing this technical scheme, solve the current technical problem that lead-in cable is not convenient for construct and tensile strength is low, provide the light-duty pipeline lead-in cable that the external diameter is littleer, weight is lighter and have excellent bending resistance, the construction of being convenient for, and can effectively improve the tensile strength of optical cable, and then reduce the input cost.

CN212623242U discloses a butterfly-shaped drop cable with a pipeline structure, which has a butterfly-shaped optical unit, a housing, a first power line, and a second power line; the butterfly-shaped optical unit is characterized by comprising an optical fiber, a first reinforcing piece, a second reinforcing piece and a sheath layer, wherein the sheath layer is provided with a first tearing opening and a second tearing opening; the shell is composed of a pipeline body, a central hole is formed in the pipeline body, a protruding part is arranged in the middle of the long sides of the left side and the right side of the central hole, a first through hole is formed in the left side of the first protruding part, and a second through hole is formed in the right side of the second protruding part; the second power line is located the first through-hole, and first power line is located the second through-hole, and butterfly light unit is located the centre bore, and first bulge card is gone into in first tearing mouthful, and second bulge card is gone into in the second tears mouthful. The pipeline is not suitable for being used in a square pipeline, and the space utilization rate is not high when the pipeline is used in the square pipeline.

CN204178023U discloses a ducted butterfly drop cable. The novel butterfly-shaped flame-retardant cable comprises a water-blocking tape, a butterfly-shaped flame-retardant sheath and optical fibers, wherein the optical fibers are arranged in the center of the butterfly-shaped flame-retardant sheath, the water-blocking tape wraps the butterfly-shaped flame-retardant sheath, the long axis direction of the butterfly-shaped flame-retardant sheath is followed, two reinforcing pieces are symmetrically arranged in the butterfly-shaped flame-retardant sheath by taking the optical fibers as centers, the short axis direction of the butterfly-shaped flame-retardant sheath is followed, two opposite V-shaped grooves are formed in the surfaces of the two sides of the butterfly-shaped flame-retardant sheath, the novel butterfly-shaped flame-retardant cable further comprises an outer sheath, a steel belt and an inner sheath which are sequentially arranged from outside to inside, the water-blocking tape wraps the inner sheath, and aramid fiber reinforcing pieces are respectively arranged at the positions of the V-shaped grooves on the two sides. The butterfly-shaped introducing optical cable for the pipeline can effectively prevent rats, has good compression resistance, tensile strength and water resistance, and is suitable for severe occasions such as pipeline environments. The two reinforcements can cause stress on the butterfly flame-retardant sheath, cause deterioration of product performance, and cause product non-roundness.

The butterfly-shaped drop cables for pipes disclosed in the above documents can be placed in a pipe, but they cannot further reduce the space occupation and more efficiently utilize the space of a pipe, particularly the space of a square pipe; in addition, the structure of the material has larger gaps, the structure of the material is further optimized, the material utilization rate is higher, and the cost is lower.

Disclosure of Invention

In order to solve the above problems, the present invention discloses a butterfly-shaped drop cable for a duct with a square cross section, which is implemented by the following technical solutions.

A butterfly-shaped introducing optical cable with a square cross section for pipelines, which comprises a protective shell, a butterfly-shaped unit and two reinforcing parts, and is characterized in that: the protective shell is in a square cross section shape, each corner of the protective shell forms an arc-shaped guide corner, an accommodating cavity is formed in the protective shell, inner convex parts protruding towards the accommodating cavity are arranged at a pair of opposite corners in the protective shell, reinforcing holes are formed in the inner convex parts, the edges of the inner convex parts in the accommodating cavity are in a cylindrical arc shape, the other pair of opposite corners in the protective shell are in an arc shape, and the reinforcing parts are located in the reinforcing holes; the butterfly-shaped unit is composed of a butterfly-shaped sheath, two reinforcing pieces and an optical fiber, the optical fiber is located in the center of the butterfly-shaped sheath, the two reinforcing pieces are located in the butterfly-shaped sheaths on two sides of the optical fiber respectively, the outer edges of the butterfly-shaped unit are the outer edges of two ends of the butterfly-shaped sheath, the outer edges of the butterfly-shaped unit are in a curved arc shape, the butterfly-shaped sheaths on the other two sides of the optical fiber are recessed towards the optical fiber, the recess is a containing cavity, the side edges of the butterfly-shaped unit are the edges of two sides of the butterfly-shaped sheath, the side edges of the butterfly-shaped unit are in an arc shape, the center of the side edges of the butterfly-shaped unit is provided with a tearing opening recessed towards the optical fiber, the length between two ends of the butterfly-shaped sheath is called the length of the butterfly-shaped unit, the width between two sides of the butterfly-shaped sheath is called the height of the butterfly-shaped unit, the butterfly-shaped unit is located in the containing cavity, the axes of the two reinforcing pieces are located in the same plane, the first symmetrical plane is called the first symmetrical plane, the first symmetrical plane is bisected by the top line of the butterfly-shaped unit, and the first symmetrical plane passes through the top angle of the other pair of the inside of the protection shell.

A butterfly-shaped introducing optical cable with a square cross section for pipelines, which comprises a protective shell, a butterfly-shaped unit and two reinforcing parts, and is characterized in that: the protective shell is composed of two identical first protective shells and two identical second protective shells, each first protective shell is composed of a first wall body and a second wall body which are connected together at one end and are perpendicular to each other, a sunken first positioning cavity is arranged in the center of the end face of the other end of each first wall body, a first fixed cavity is arranged behind the first positioning cavity and communicated with the first positioning cavity, the height of the first fixed cavity is larger than that of the first positioning cavity, a sunken second positioning cavity is arranged in the center of the end face of the other end of each second wall body, a second fixed cavity is arranged above the second positioning cavity and communicated with the second positioning cavity, the width of the second fixed cavity is larger than that of the second positioning cavity, and the outer edge and the inner edge of the joint of each first wall body and the second wall body are both arc-shaped; the second protective shell is composed of a first extending component, a second extending component and an inner convex component, one end of the first extending component and one end of the second extending component are connected together, the first extending component and the second extending component are mutually vertical, the outer edge of the joint of the first extending component and the second extending component is in a circular arc shape, the inner convex component is positioned at the inner edge of the joint of the first extending component and the second extending component and protrudes in a direction deviating from an included angle, the edge of the inner convex component is in a cylindrical arc shape, a reinforcing hole is formed in the inner convex component, a first extending strip extending outwards is arranged on the end face of the midpoint of the other end of the first extending component, the outer end of the first extending strip is connected with a first clamping strip, the height of the first extending strip is smaller than that of the first clamping strip, a second extending strip extending outwards is arranged on the end face of the midpoint of the other end of the second extending component, the second extending strip is connected with a second clamping strip, the width of the second extending strip is smaller than that of the second clamping strip, the first clamping strip of the first and second protective shells is clamped in the first fixing cavity of the first and second protective shells, the first extending strip of the first and second protective shells is clamped in the first positioning cavity of the first and second protective shells, the second clamping strip of the second and second protective shells is clamped in the second fixing cavity of the first and second protective shells, the second extending strip of the second and second protective shells is clamped in the second positioning cavity of the first and second protective shells, the second clamping strip of the first and second protective shells is clamped in the second fixing cavity of the second and second protective shells, the second extending strip of the first and second protective shells is clamped in the second positioning cavity of the second and the first clamping strip of the second and second protective shells is clamped in the first fixing cavity of the second and first protective shells, the first extending strip of the second protective shell is clamped in the first positioning cavity of the second first protective shell, the two same first protective shells and the two same second protective shells are combined to form a protective shell with a square cross section shape, the inner part of the protective shell is provided with an accommodating cavity, and the reinforcing part is positioned in the reinforcing hole; the butterfly-shaped unit is composed of a butterfly-shaped sheath, two reinforcing pieces and an optical fiber, the optical fiber is located in the center of the butterfly-shaped sheath, the two reinforcing pieces are located in the butterfly-shaped sheaths on two sides of the optical fiber respectively, the outer edges of the butterfly-shaped unit are the outer edges of two ends of the butterfly-shaped sheath, the outer edges of the butterfly-shaped unit are in a curved arc shape, the butterfly-shaped sheaths on the other two sides of the optical fiber are recessed towards the optical fiber, the recess is a containing cavity, the side edges of the butterfly-shaped unit are the edges of two sides of the butterfly-shaped sheath, the side edges of the butterfly-shaped unit are in an arc shape, the center of the side edges of the butterfly-shaped unit is provided with a tearing opening recessed towards the optical fiber, the length between two ends of the butterfly-shaped sheath is called the length of the butterfly-shaped unit, the width between two sides of the butterfly-shaped sheath is called the height of the butterfly-shaped unit, the butterfly-shaped unit is located in the containing cavity, the axes of the two reinforcing pieces are located in the same plane, the first symmetrical plane is called the first symmetrical plane, the first symmetrical plane is bisected by the top line of the butterfly-shaped unit, and the first symmetrical plane passes through the top angle of the other pair of the inside of the protection shell.

The butterfly-shaped drop optical cable with the square cross section for the pipeline is characterized in that: the two ends of the outer edge of the butterfly-shaped unit are in a straight line shape.

The butterfly-shaped drop cable with the square cross section for the pipeline is characterized in that: the optical fiber has a plurality of optical fibers arranged in a row, presenting a plurality of ribbons, or only one row.

The butterfly-shaped drop optical cable with the square cross section for the pipeline is characterized in that: the optical fiber is located within the optical fiber ribbon.

The invention has the following main beneficial technical effects: the device can be placed in a square pipeline, the occupied space can be further reduced, the pipeline space can be more efficiently utilized, the structure is more compact, the material utilization rate is higher, and the cost is lower.

Drawings

Fig. 1 is a schematic perspective view of a piece of anatomy according to example 1.

Fig. 2 is an enlarged cross-sectional structure diagram of fig. 1.

Fig. 3 is a schematic perspective view of a section of the protective shell used in fig. 1 after dissection.

Fig. 4 is an enlarged cross-sectional view of fig. 3.

Fig. 5 is a schematic perspective view of a first protective cover used in example 2.

Fig. 6 is an enlarged cross-sectional view of fig. 5.

Fig. 7 is a schematic perspective view of a second protective shell used in example 2 after dissection.

Fig. 8 is an enlarged cross-sectional view of fig. 7.

Fig. 9 is a schematic perspective view of a section of an anatomical butterfly unit as used in the present application.

Fig. 10 is an enlarged cross-sectional view of fig. 9.

Fig. 11 is a schematic cross-sectional structure diagram of a butterfly unit used in embodiment example 3.

Fig. 12 is a schematic perspective view of a dissected segment of the example 4.

Fig. 13 is a schematic cross-sectional structure of embodiment example 5.

In the figure: 1-protective housing, 2-butterfly unit, 3-reinforcing member, 11-first protective housing, 12-second protective housing, 21-butterfly sheath, 22-reinforcing member, 23-optical fiber, 10-accommodation cavity, 123-inward convex member, 1230-reinforcing hole, 111-first wall body, 112-second wall body, 1111-first fixing cavity, 1112-first positioning cavity, 1121-second fixing cavity, 1122-second positioning cavity, 121-first extension member, 122-second extension member, 1211-first extension bar, 1212-first engagement bar, 1221-second extension bar, 1222-second engagement bar, 24-tearing opening, 25-accommodation cavity, 211-butterfly unit outer edge, 251-butterfly unit side edge, L-length of butterfly unit, W-height of butterfly unit, 231-optical fiber ribbon.

Detailed Description

Examples 1

Referring to fig. 1 to 4, 9 and 10, a butterfly-shaped drop cable for a pipeline with a square cross section includes a protective casing 1, a butterfly unit 2, two reinforcing members 3, and is characterized in that: the protection shell 1 is in a square cross section shape, each corner of the protection shell 1 forms a circular arc-shaped guide corner, the interior of the protection shell 1 is provided with an accommodating cavity 10, a pair of opposite corners of the interior of the protection shell 1 are provided with inner convex parts 123 protruding towards the accommodating cavity 10, the inner convex parts 123 are internally provided with reinforcing holes 1230, the edge of the inner convex parts 123 positioned in the accommodating cavity 10 is in a cylindrical arc shape, the other pair of opposite corners of the interior of the protection shell 1 is in an arc shape, and the reinforcing parts 3 are positioned in the reinforcing holes 1230; the butterfly-shaped unit 2 is composed of a butterfly-shaped sheath 21, two reinforcing members 22 and an optical fiber 23, the optical fiber 23 is located in the center of the butterfly-shaped sheath 21, the two reinforcing members 22 are respectively located in the butterfly-shaped sheaths 21 on the two sides of the optical fiber 23, the outer edge 211 of the butterfly-shaped unit is the outer edge of the two ends of the butterfly-shaped sheath 21, the outer edge 211 of the butterfly-shaped unit is in a curved arc shape, the butterfly-shaped sheaths 21 on the other two sides of the optical fiber 23 are recessed towards the optical fiber 23, the recess is a containing cavity 25, the side edge 251 of the butterfly-shaped unit is the edge of the two sides of the butterfly-shaped sheath 21, the side edge 251 of the butterfly-shaped unit is in a circular arc shape, the center of the side edge 251 of the butterfly-shaped unit is provided with a tearing opening 24 recessed towards the optical fiber 23, the length between the two ends of the butterfly-shaped sheath 21 is called the length L of the butterfly-shaped unit, the width between the two sides of the butterfly-shaped sheath 21 is called the height W of the butterfly-shaped unit, the butterfly-shaped unit 2 is located in the containing cavity 10, the axes of the two reinforcing members 22 are in the same plane, the first symmetrical plane is called a first symmetrical plane, and the top angle of the butterfly-shaped protection shell 1 is called a top angle.

EXAMPLES example 2

Referring to fig. 5 to 8, 9 and 10, and fig. 1 to 4, a butterfly-shaped drop cable for a duct with a square cross section includes a protective housing 1, a butterfly unit 2, and two reinforcing members 3, wherein: the protective casing 1 is composed of two identical first protective shells 11 and two identical second protective shells 12, the first protective shells 11 are composed of a first wall body 111 and a second wall body 112 which are connected at one end and are perpendicular to each other, a recessed first positioning cavity 1112 is arranged in the center of the end face of the other end of the first wall body 111, a first fixing cavity 1111 is arranged behind the first positioning cavity 1112, the first fixing cavity 1111 is communicated with the first positioning cavity 1112, the height of the first fixing cavity 1111 is greater than that of the first positioning cavity 1112, a recessed second positioning cavity 1122 is arranged in the center of the end face of the other end of the second wall body 112, a second fixing cavity 1121 is arranged above the second positioning cavity 1122, the second fixing cavity 1121 is communicated with the second positioning cavity 1122, the width of the second fixing cavity 1121 is greater than that of the second positioning cavity 1122, and the outer edge and the inner edge of the connection part of the first wall body 111 and the second wall body 112 are both arc-shaped; the second protective shell 12 is composed of a first extending member 121, a second extending member 122, and an inner protruding member 123, the first extending member 121 is connected to the second extending member 122, the first extending member 121 is perpendicular to the second extending member 122, an outer edge of a connection portion of the first extending member 121 and the second extending member 122 is in a circular arc shape, the inner protruding member 123 is located at an inner edge of the connection portion of the first extending member 121 and the second extending member 122 and protrudes away from an included angle direction, an edge of the inner protruding member 123 is in a cylindrical arc shape, a reinforcing hole 1230 is formed inside the inner protruding member 123, a first extending strip 1211 extending outwards is arranged on an end surface of a midpoint of the other end of the first extending member 121, a first engaging strip 1212 is connected to an outer end of the first extending strip 1211, the height of the first extending strip 1211 is smaller than that of the first engaging strip 1212, a second extending strip 1221 extending outwards is arranged on an end surface of the midpoint of the other end of the second extending member 122, the outer end of the second extending strip 1221 is connected with a second fastening strip 1222, the width of the second extending strip 1221 is smaller than the width of the second fastening strip 1222, the first fastening strip 1212 of the first second protective shell 12 is fastened in the first fixing cavity 1111 of the first protective shell 11, the first extending strip 1211 of the first second protective shell 12 is fastened in the first positioning cavity 1112 of the first protective shell 11, the second engaging strip 1222 of the second protective shell 12 is engaged in the second fixing cavity 1121 of the first protective shell 11, the second extending strip 1221 of the second protective shell 12 is engaged in the second positioning cavity 1122 of the first protective shell 11, the second engaging strip 1222 of the first second protective shell 12 is engaged in the second fixing cavity 1121 of the second first protective shell 11, the second extending strip 1221 of the first second protective shell 12 is engaged in the second positioning cavity 1122 of the second protective shell 12, the first fastening strip 1212 of the second protective shell 12 is snapped into the first fixing cavity 1111 of the second first protective shell 11, the first extending strip 1211 of the second protective shell 12 is snapped into the first positioning cavity 1112 of the second first protective shell 11, the two identical first protective shells 11 and the two identical second protective shells 12 are combined to form the protective housing 1 with a square cross-sectional shape and have the accommodating cavity 10 therein, and the reinforcing member 3 is located in the reinforcing hole 1230; the butterfly unit 2 is composed of a butterfly sheath 21, two reinforcing members 22 and an optical fiber 23, the optical fiber 23 is located in the center of the butterfly sheath 21, the two reinforcing members 22 are respectively located in the butterfly sheaths 21 on two sides of the optical fiber 23, the outer edge 211 of the butterfly unit is the outer edge of two ends of the butterfly sheath 21, the outer edge 211 of the butterfly unit is in a curved arc shape, the butterfly sheaths 21 on the other two sides of the optical fiber 23 are recessed towards the optical fiber 23, the recess is a containing cavity 25, the side edge 251 of the butterfly unit is the edge of two sides of the butterfly sheath 21, the side edge 251 of the butterfly unit is in a circular arc shape, the center of the side edge 251 of the butterfly unit is provided with a tearing opening 24 recessed towards the optical fiber 23, the length between two ends of the butterfly sheath 21 is called the length L of the butterfly unit, the width between two sides of the butterfly sheath 21 is called the height W of the butterfly unit, the butterfly unit 2 is located in the containing cavity 10, the axes of the two reinforcing members 22 are in the same plane, the plane where the axes of the two reinforcing members 22 are called a first symmetrical plane, the first symmetrical plane is a bisecting plane, the first symmetrical plane is the top angle 123 of the butterfly unit 2, the first symmetrical plane passes through the top line of the other top line of the protection shell 1, and the protection shell is not provided with a corresponding vertex angle 123.

In the present embodiment, each of the first protective cases 11 is a one-piece structure.

In the present embodiment, each of the second protective cases 12 is a one-piece structure.

EXAMPLE 3

Referring to fig. 11 and fig. 1 to 10, a butterfly-shaped drop cable for a pipeline with a square cross section is substantially the same as embodiment 1 or embodiment 2, except that: the outer edge 211 of the butterfly unit has a straight shape at both ends.

EXAMPLE 4

Referring to fig. 12, and to fig. 1 to 11, a butterfly-shaped drop cable for a duct having a square cross section is basically the same as embodiment 1 except that the optical fibers 23 have six fibers and are arranged in two parallel rows of three fibers in one row.

Of course, other multiple pieces may be provided, multiple pieces may be arranged in a row, multiple bands may be present, or only one row may be present.

The protective casing 1 of the present embodiment can also be the protective casing 1 of embodiment 2.

EXAMPLES example 5

Referring to fig. 13 and 1 to 12, a butterfly-shaped drop cable for a duct having a square cross section is substantially the same as embodiment 4 except that the optical fiber 23 is disposed in the optical fiber ribbon 231.

This embodiment can also be called a butterfly-shaped leading-in optical fiber ribbon cable for pipelines.

The butterfly-shaped drop cable for the pipeline with the square cross section is characterized in that: the material of the protective casing 1 is plastic or steel or iron or aluminium or other alloys.

The butterfly-shaped drop cable for the pipeline with the square cross section is characterized in that: the reinforcing part is a steel wire, a copper wire, an aluminum wire, a glass fiber reinforced plastic rod or a power transmission wire, the power transmission wire is composed of a conductor and an insulating layer covering the conductor, when the reinforcing part is the power transmission wire, the product has a power transmission function, one cable can be used for multiple purposes, no additional cable needs to be laid, and electric power and optical signals can enter a house or enter a machine room, a case and the like.

The butterfly-shaped drop cable for the pipeline with the square cross section is characterized in that: the material of the first protective shell is plastic or steel or iron or aluminum or other alloys.

The butterfly-shaped introducing optical cable for the pipeline with the square cross section is characterized in that: the material of the second protective casing is plastic or steel or iron or aluminium or other alloys.

The butterfly-shaped drop cable for the pipeline with the square cross section is characterized in that: the butterfly-shaped sheath is made of plastic.

The butterfly-shaped drop cable for the pipeline with the square cross section is characterized in that: the reinforcing part is a steel wire or a copper wire or an aluminum wire or a glass fiber reinforced plastic rod.

The butterfly-shaped drop cable for the pipeline with the square cross section is characterized in that: the optical fiber is a single mode or multimode optical fiber.

The butterfly-shaped introducing optical cable for the pipeline with the square cross section is characterized in that: the butterfly unit has a length of 2.8-3.2mm.

The butterfly-shaped drop cable for the pipeline with the square cross section is characterized in that: the height of the butterfly unit is 1.8-2.2mm.

The butterfly-shaped introducing optical cable for the pipeline with the square cross section is characterized in that: the length of the butterfly-shaped unit is 1.8-2.2mm, and the height of the butterfly-shaped unit is 1.4-1.8mm.

In summary, the butterfly-shaped drop cable for a conduit having a square cross section in the present application includes a protective shell 1, a butterfly unit 2, and two reinforcing members 3, and is characterized in that: in the butterfly-shaped lead-in optical cable for the pipeline, a protection shell 1 is in a square cross section shape, each corner of the protection shell 1 forms an arc-shaped guide corner, an accommodating cavity 10 is formed inside the protection shell 1, inner convex parts 123 protruding towards the accommodating cavity 10 are arranged at a pair of opposite corners inside the protection shell 1, reinforcing holes 1230 are formed inside the inner convex parts 123, the edges of the inner convex parts 123 located in the accommodating cavity 10 are in a cylindrical arc shape, the other pair of opposite corners inside the protection shell 1 are in an arc shape, and reinforcing parts 3 are located in the reinforcing holes 1230; the butterfly-shaped unit 2 is composed of a butterfly-shaped sheath 21, two reinforcing members 22 and an optical fiber 23, the optical fiber 23 is located in the center of the butterfly-shaped sheath 21, the two reinforcing members 22 are respectively located in the butterfly-shaped sheaths 21 on the two sides of the optical fiber 23, the outer edge 211 of the butterfly-shaped unit is the outer edge of the two ends of the butterfly-shaped sheath 21, the outer edge 211 of the butterfly-shaped unit is in a curved arc shape, the butterfly-shaped sheaths 21 on the other two sides of the optical fiber 23 are recessed towards the optical fiber 23, the recess is a containing cavity 25, the side edge 251 of the butterfly-shaped unit is the edge of the two sides of the butterfly-shaped sheath 21, the length between the two ends of the butterfly-shaped sheath 21 is called the length L of the butterfly-shaped unit, the width between the two sides of the butterfly-shaped sheath 21 is called the height W of the butterfly-shaped unit, the butterfly-shaped unit 2 is located in the containing cavity 10, the plane where the axes of the two reinforcing members 22 are located is the first symmetrical plane bisecting the butterfly-shaped plane of the butterfly-shaped unit 2, the end portions of the two ends of the butterfly-shaped sheath 21 are straight lines, the first symmetrical plane passes through the vertex angle of the other end of the butterfly-shaped sheath 1 in the pipeline leading-in the optical cable.

In other words, the butterfly-shaped unit and the protection shell are obliquely arranged, namely, the butterfly-shaped unit and the protection shell are obliquely arranged at an angle of 45 degrees, so that the space of the protection shell is utilized to the maximum extent, the space occupation and the material consumption of the optical cable are saved, and the reasonable arrangement in the square pipeline and the utilization of the maximum degree of the pipeline space are realized.

In the present application, the butterfly units are distributed along the diagonal of the inner cavity of the protection housing, or in an inclined distribution manner, so that the space is effectively utilized, and the butterfly units are substantially fully distributed in the accommodating cavity 10, and the inner convex part 123 is located in the accommodating cavity 10, so that the accommodating cavity 10 is skillfully utilized, and the outer edge of the accommodating cavity 10 is matched or combined with the accommodating cavity 25, the outer edge of the inner convex part 123 is the same as the accommodating cavity 25 in size, so that the accommodating cavity 10 is utilized to the maximum extent, the tear opening 24 is convenient for peeling the butterfly units, which is also possible when not available, compared with the manner in which the butterfly units are distributed horizontally or vertically in the prior art, the present application has a higher utilization rate of space, and the existence of the reinforcing part 3 plays a role in enhancing the tensile force and the compressive resistance of the optical cable, the manner in embodiment 2 makes the product easier to be combined and disassembled, only needs to be replaced when the butterfly units are damaged locally, and does not need to be replaced completely, and can be distributed to each unit for production, so that the progress and the generality of the production are greatly accelerated, and the restriction of the L and W of the present application, and the restriction of the present application make the square units suitable for forming a corresponding square pipeline connector, and the prior art of the present application form a corresponding pipeline protection housing which can be used for minimizing the problem of the existing pipeline.

In the application, the first protective shell and the second protective shell are embedded without being limited to the implementation example, and any other structures capable of combining the first protective shell and the second protective shell can be adopted in practice as long as the two first protective shells and the two second protective shells are spliced to form a protective shell with a square cross section shape, the square cross section shape in the application refers to the overall vision of the outer edge of the protective shell, and the connecting angle of the two first protective shells and the two second protective shells can be arc-shaped, so that the cost is saved, and the attractive effect and function are achieved; in addition, in the present application, the tearing opening of the butterfly unit is not necessary actually, and the tearing opening only increases the easy stripping performance of the product.

The optical cable can be used in a square pipeline, the material and the space of the pipeline are effectively saved, in addition, because the optical cable does not have redundant space structure waste, the optical cable can rent or adopt a smaller pipeline, the pipeline cost is also saved, and the optical cable is in plane contact with the pipeline in the square pipeline, so the structure is more stable and more reliable compared with the line contact in the prior art; in addition, in a large-sized square tube, a plurality of optical cables can be arranged, so that the space is utilized to the maximum extent, and the photoelectric access can be realized by a single optical cable, so that the cost is saved.

The application has the following main beneficial technical effects: the device can be placed in a square pipeline, the occupied space can be further reduced, the pipeline space can be more efficiently utilized, the structure is more compact, the material utilization rate is higher, and the cost is lower.

The above-described embodiments are merely preferred technical solutions of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims

1. A butterfly-shaped introducing optical cable with a square cross section for a pipeline is provided with a protective shell (1), a butterfly-shaped unit (2) and two reinforcing parts (3), and is characterized in that: the protection shell (1) is square in cross section, each corner of the protection shell (1) forms a circular arc-shaped guide angle, an accommodating cavity (10) is formed in the protection shell (1), an inner convex part (123) protruding towards the accommodating cavity (10) is arranged at a pair of opposite corners in the protection shell (1), a reinforcing hole (1230) is formed in the inner convex part (123), the edge of the inner convex part (123) located in the accommodating cavity (10) is cylindrical arc-shaped, the other pair of opposite corners in the protection shell (1) is arc-shaped, and the reinforcing part (3) is located in the reinforcing hole (1230); the butterfly-shaped unit (2) is composed of a butterfly-shaped sheath (21), two reinforcing pieces (22) and an optical fiber (23), the optical fiber (23) is positioned in the center of the butterfly-shaped sheath (21), the two reinforcing pieces (22) are respectively positioned in the butterfly-shaped sheaths (21) on two sides of the optical fiber (23), the outer edges (211) of the butterfly-shaped unit are the outer edges of two ends of the butterfly-shaped sheath (21), the outer edges (211) of the butterfly-shaped unit are in a curved arc shape, the butterfly-shaped sheaths (21) on the other two sides of the optical fiber (23) are concave towards the direction of the optical fiber (23), the butterfly-shaped unit is characterized in that the recess is a containing cavity (25), the side edge (251) of the butterfly-shaped unit is the edge of two sides of the butterfly-shaped sheath (21), the side edge (251) of the butterfly-shaped unit is in a circular arc shape, the center of the side edge (251) of the butterfly-shaped unit is provided with a tearing opening (24) recessed towards the direction of the optical fiber (23), the length between two ends of the butterfly-shaped sheath (21) is called as the length of the butterfly-shaped unit, the width between two sides of the butterfly-shaped sheath (21) is called as the height of the butterfly-shaped unit, the butterfly-shaped unit (2) is located in the containing cavity (10), the axes of the two reinforcing pieces (22) are in the same plane, the axes of the two reinforcing pieces (22) are called as a first symmetrical plane in the plane, the first symmetrical plane is a vertex line bisecting the butterfly-shaped unit (2), and the first symmetrical plane passes through the other pair of vertex angles in the protecting shell (1).

2. A butterfly-shaped introducing optical cable with a square cross section for a pipeline is provided with a protective shell (1), a butterfly-shaped unit (2) and two reinforcing parts (3), and is characterized in that: the protective shell (1) comprises two identical first protective shells (11) and two identical second protective shells (12), wherein each first protective shell (11) comprises a first wall body (111) and a second wall body (112) which are connected at one end and are perpendicular to each other, a sunken first positioning cavity (1112) is formed in the center of the end face of the other end of each first wall body (111), a first fixing cavity (1111) is formed in the rear of each first positioning cavity (1112), the first fixing cavity (1111) is communicated with the first positioning cavity (1112), the height of the first fixing cavity (1111) is larger than that of the first positioning cavity (1112), a sunken second positioning cavity (1122) is formed in the center of the end face of the other end of each second wall body (112), a second fixing cavity (1121) is formed above the second positioning cavity (1122), the second fixing cavity (1121) is communicated with the second positioning cavity (1122), the width of the second fixing cavity (1121) is larger than that of the second positioning cavity (1122), and the outer edges of the connecting positions of the first protective shells (111) and the second wall bodies (112) are circular arc-shaped; the second protective shell (12) is composed of a first extending component (121), a second extending component (122) and an inner convex component (123), one end of the first extending component (121) and one end of the second extending component (122) are connected together, the first extending component (121) and the second extending component (122) are perpendicular to each other, the outer edge of the joint of the first extending component (121) and the second extending component (122) is in a circular arc shape, the inner convex component (123) is positioned on the inner edge of the joint of the first extending component (121) and the second extending component (122) and protrudes in a direction deviating from an included angle, the edge of the inner convex component (123) is in a cylindrical arc shape, a reinforcing hole (1230) is formed inside the inner convex component (123), a first extending strip (1211) extending outwards is arranged on the end face of the center of the other end of the first extending component (121), a first clamping strip (1212) is connected to the outer end of the first extending strip (1211), the height of the first extending strip (1211) is smaller than the height of the first clamping strip (1212), a second extending strip (1111) is connected to the width (1) of the second extending strip (1221) which is connected to the center of the second extending strip (1221), the first extension strip (1211) of the first second protective shell (12) is clamped in the first positioning cavity (1112) of the first protective shell (11), the second clamping strip (1222) of the second protective shell (12) is clamped in the second fixing cavity (1121) of the first protective shell (11), the second extending strip (1221) of the second protective shell (12) is clamped in the second positioning cavity (1122) of the first protective shell (11), the second clamping strip (1222) of the first second protective shell (12) is clamped in the second fixing cavity (1121) of the second first protective shell (11), the second extending strip (1221) of the first second protective shell (12) is clamped in the second positioning cavity (1122) of the second protective shell (12), a first clamping strip (1212) of a second protective shell (12) is clamped in a first fixing cavity (1111) of the second first protective shell (11), a first extending strip (1211) of the second protective shell (12) is clamped in a first positioning cavity (1112) of the second first protective shell (11), the two same first protective shells (11) and the two same second protective shells (12) are combined to form a protective shell (1) with a square cross section shape, the protective shell (1) is internally provided with an accommodating cavity (10), and the reinforcing component (3) is positioned in the reinforcing hole (1230); the butterfly unit (2) is composed of a butterfly sheath (21), two reinforcing pieces (22) and an optical fiber (23), the optical fiber (23) is located in the center of the butterfly sheath (21), the two reinforcing pieces (22) are respectively located in the butterfly sheaths (21) on two sides of the optical fiber (23), the outer edges (211) of the butterfly unit are the outer edges of two ends of the butterfly sheath (21), the outer edges (211) of the butterfly unit are in a bent arc shape, the butterfly sheaths (21) on the other two sides of the optical fiber (23) are sunken towards the direction of the optical fiber (23), the sunken part is an accommodating cavity (25), and the side edges (251) of the butterfly unit are the edges on two sides of the butterfly sheath (21), the side edge (251) of the butterfly-shaped unit is in a circular arc shape, the center of the side edge (251) of the butterfly-shaped unit is provided with a tearing opening (24) which is sunken towards the direction of the optical fiber (23), the length between two ends of the butterfly-shaped sheath (21) is called as the length of the butterfly-shaped unit, the width between two sides of the butterfly-shaped sheath (21) is called as the height of the butterfly-shaped unit, the butterfly-shaped unit (2) is positioned in the accommodating cavity (10), the axes of the two reinforcing pieces (22) are positioned in the same plane, the plane where the axes of the two reinforcing pieces (22) are positioned is called as a first symmetrical plane which bisects the butterfly-shaped unit (2), and the first symmetrical plane passes through the top line of the other pair of corners in the protective shell (1), the protective shell (1) is square in cross section.

3. A butterfly-shaped drop cable for pipes having a square cross-section according to claim 1 or claim 2, wherein: the two ends of the outer edge (211) of the butterfly-shaped unit are in a linear shape.

4. A butterfly-shaped drop cable for a duct having a square cross-section according to claim 1 or claim 2, wherein: the optical fiber (23) has a plurality of fibers arranged in a row.

5. The butterfly drop cable for pipes having a square cross-section of claim 4, wherein: the optical fiber (23) is positioned within the optical fiber ribbon (231).

6. A butterfly-shaped drop cable for pipes having a square cross-section according to claim 1 or claim 2, wherein: the material of the protective casing is plastic or iron or aluminum or an alloy.

7. A butterfly-shaped drop cable for a duct having a square cross-section according to claim 1 or claim 2, wherein: the reinforcing part is a steel wire or a copper wire or an aluminum wire or a glass fiber reinforced plastic rod or a power transmission lead, and the power transmission lead consists of a conductor and an insulating layer covering the conductor.

8. A butterfly-shaped drop cable for a conduit having a square cross-section according to claim 2, wherein: the material of the first protective shell is plastic or iron or aluminum or an alloy.

9. A butterfly-shaped drop cable for a conduit having a square cross-section according to claim 2, wherein: the material of the second protective shell is plastic or iron or aluminum or alloy; the butterfly-shaped sheath is made of plastic.

10. A butterfly-shaped drop cable for pipes with a square cross section, having a protective casing (1), a butterfly unit (2), two reinforcing elements (3), characterized in that: in the butterfly-shaped lead-in optical cable for the pipeline, a protection shell (1) is in a square cross section shape, each corner of the protection shell (1) forms an arc-shaped guide corner, an accommodating cavity (10) is formed inside the protection shell (1), an inner convex part (123) protruding towards the accommodating cavity (10) is arranged at a pair of opposite corners inside the protection shell (1), a reinforcing hole (1230) is formed inside the inner convex part (123), the edge of the inner convex part (123) positioned in the accommodating cavity (10) is in a cylindrical arc shape, the other pair of opposite corners inside the protection shell (1) is in an arc shape, and a reinforcing part (3) is positioned in the reinforcing hole (1230); the butterfly-shaped unit (2) is composed of a butterfly-shaped sheath (21), two reinforcing pieces (22) and an optical fiber (23), the optical fiber (23) is positioned in the center of the butterfly-shaped sheath (21), the two reinforcing pieces (22) are respectively positioned in the butterfly-shaped sheaths (21) on two sides of the optical fiber (23), the outer edges (211) of the butterfly-shaped unit are the outer edges of two ends of the butterfly-shaped sheath (21), the outer edges (211) of the butterfly-shaped unit are in a curved arc shape, the butterfly-shaped sheaths (21) on the other two sides of the optical fiber (23) are concave towards the direction of the optical fiber (23), the recess is a containing cavity (25), the side edges (251) of the butterfly-shaped units are the edges of two sides of the butterfly-shaped jacket (21), the side edges (251) of the butterfly-shaped units are in a circular arc shape, the length between two ends of the butterfly-shaped jacket (21) is called the length of the butterfly-shaped units, the width between two sides of the butterfly-shaped jacket (21) is called the height of the butterfly-shaped units, the butterfly-shaped units (2) are positioned in the containing cavity (10), the axes of the two reinforcing pieces (22) are positioned in the same plane, the plane where the axes of the two reinforcing pieces (22) are positioned is called a first symmetrical plane, the first symmetrical plane bisects the butterfly-shaped units (2), the end parts of two ends of the butterfly-shaped jacket (21) are all straight lines, and the first symmetrical plane passes through the end parts of two ends of the butterfly-shaped jacket (21), in a butterfly drop cable for a duct, a first plane of symmetry passes through the vertex line of the other pair of vertices inside the protective casing (1).